Diaphragm pump and pump for double-breast pumping

Details Diaphragm pump and pump for double-breast pumping Diaphragm pump and pump for double-breast pumping

F - Mech Eng,Light,Heat,Weapons

04

B

F04B 17/03 (2006.01) A61M 1/06 (2006.01) F04B 45/04 (2006.01) A61M 1/00 (2006.01)

Patent

CA 2327111

A motorized pump which includes a flexible diaphragm (70) fitting within a rigid member (90), a motor drive mechanism (28) for driving a puller member (48) attached to the diaphragm away from the rigid member to create a space between the diaphragm and the rigid member and form a negative pressure region within that space, and an outlet communicating with the negative pressure region. In one embodiment, the pump provides a negative pressure in a single chamber which can be used to operate one or two breast shield assembles. In another embodiment, the pump is particularly adapted for double-pumping and provides two chambers which generate vacuum.

L'invention concerne une pompe à moteur constitué d'une membrane souple (70) s'adaptant à l'intérieur d'un élément rigide (90), un mécanisme d'entraînement à moteur (28) destiné à écarter un élément de traction (48) fixé à la membrane de l'élément rigide de manière à créer un espace entre la membrane et l'élément rigide et à former une zone d'aspiration dans cet espace, et une sortie communiquant avec la zone d'aspiration. Selon un mode de réalisation, la pompe permet d'obtenir une aspiration dans une seule chambre, aspiration qui peut être utilisée pour faire fonctionner un ou deux ensembles téterelle. Selon un autre mode de réalisation, le tire-lait est particulièrement adapté au double pompage et présente, à cet effet, deux chambres de dépression.

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